Antiskidding device.



H. W. MAURER.

ANTISKIDDING DEVIGE. AYPLIGATION FILED umso, 1911.

1,049,75 1 Patented Jau?, 1913.

UNITED STATES PATENT OFFICE. HERMAN W. MAURER, OF CLEITELAND, OHIO, ASSIG-NOR OF ONE-HALF T HOWARD E. y

MILLS, JR., OF CLEVELAND, OHIO.

. k ANTISKIDDING DEVICE.

Specification of Letters Patent.

Patented Jan. 7, 1913.

Application led August 3.0, 1911. ASerial No. 646,853.

` Devices, of which the following is a specifidrawings, and particularly cation.

My invention relates to improvements in anti-skidding devices for wheel tires, and is particularly designed and adapted for use as an anti-skidding or traction device for use in connection with pneumatic tires used in connection with the wheels of automobiles and other horseless vehicles.

' The primary object of my invention is to provide a generally improved anti-skidding device of simple, cheap, and efficient construction which may be readily and quickly attached to or detached from any ordinary wheel and pneumatic tire.

With the^abovementioned and other ends inview, the invention consists in the novel construction, arrangement, and combination of parts, lhereinafter' described, illustrated in one of its embodiments inf-the accompanying pointed out in the appended claims.

Referrin to the drawings, forming a part of this specllication, Figure 1, is a side elevation of a section of a wheel andtire equipped with the improved anti-skidding device, one ,n ofl the tire traction members being shown in a folded position. Fig. 2, a cross sectional view of the same. Fig. 8, an enlarged edge view of one of the tire traction members, and illustrating a portion of the supporting ring, and

one of the spoke clamps. Fig. 4, aside elevation of the tire traction member and yspoke clamp, the supporting ring being shown in cross section. Fig. 5, a lan v1ew of the spoke clampdetached. Flg. 6,' a fragmentary view of the pivoted portion of oneof like parts throughout all the iguresof the drawmgs;

The improved anti-skidding device comprises a plurality of tire tractlon members 1,

of circular or crescent shape and adapted to be secured or mounted at one side of the tire and to extend transversely over the tread portion thereof when in operative position for use.

l As a means for quickly attaching or detaching the tire traction members to thev wheel, a supporting ring 2, may be provided at one side of the wheel felly 3, said supporting ring, in the present instance, being ,secured and supported by means of a plurality of spoke clamps 4, arranged at suitable intervals, each of said spoke clamps consisting of a fixed member carrying a sup porting lug) 5, and a hinged' or movable clamp mem er 6, the freeend of said hinged clamp member being adapted to be secured by means of a securing bolt 7, passing through the shank or lug supporting portion 4, of the clamp, and provided with a nut 7 a.

he lug 5, of the spoke clamp is provided with a recess adapted tovreceive and take over the inner marginal edge of the supporting ring, whereby the latter is securely held 1n proper position for supporting the tire traction members 1.

As a means for swinging the tire traction members into' and out of operative engagement with the tread portion of the tire 8 the tire traction members are pivotally mounted or hinged at one side of the tire by'means of pivot boltsl9, mounted in bearing lugs 10, of supporting -membersor clips 1l, carried 0r supported, in the present instance, on the i supporting ringl 2.

Asa means for holding the tire traction members 1, inoperative contact with the, tread portion of the tire 8,- the pivoted or base portions of the traction members 1, are provided -with swinging latching or locking members 12, pivoted between suitable lugs 1a, of the traction members, each of said swinging latching or-` locking members, inv

the present -inst-ance,'being provided with a longitudinally movable block 12a, slidably mounted and carried by guide pins 12", and operating against the resistance of springs surrounding said guide pins. When the" traction memberl, is -in contact with the tire 8, the same will be' removably and resiliently held in contact therewith through the medium of the latching member 12, the block 12, being seated in an undercut opening or recess 13, in the supporting member or clip 11,

As a 'means for swinging the supporting member or clip 11, laterally, whereby the hinged or pivoted tractipn member 1, after being released and swung out of contact with the tire by the release of the latching member 12, may be carried or put up along the wheel felly 3, and secured in such position, the supporting member or clip 11, is secured by means of an attaching bolt 14, passing through the supporting ring 2, and as a means for stopping and holding the supporting member or clip 11, in folded position, as indicated in Fig. 1, of the drawings, the base of the clip or supporting member 11, may be provided with a lug or projection 11a, adapted to come into engagement with a stop lug 2a, on the supporting ring, in which position the traction member may surround and contact with the adjacent spoke 15,y of thewheel as illustrated in Fig. 1, of the drawings.

It will be observed that by reason of the above described construction the tire `traction members 1, are permitted to have a combined radial and transverse motion on the pivot bolts 9, as well as a limited canting or circumferential movement with respect to the tread portion of the tire by reason of the movement of the supporting clips 11, on the attaching bolts 14, carried by the supporting ring 2, and that the latter, together with the attached tire traction members are permitted to have a limited creeping or circumferential movement with respect to the tire by reason of the creeping or slipping of the inner periphery of the supporting ring 2, in the recess portion of the lugs 5, of the spoke clamps 4, these various adjustments being of importance in meeting the various exigencies of actual service, as for example,*the various concussions of the tire and tire traction members in passing over or 'striking obstacles and the defiation or partial deflation of the tire while the wheel is in motion. v

From' the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described one of the embodiments of my invention, what I claim and desire to secure by Letters Patent is,-

1. In an anti-skidding device, a supporting ring, bearing clips pivoted at one side of the latter, and tire traction members transversely pivoted in said supporting clips.

2. An anti-skidding device, comprising a supporting ring, means for slidably connecting the latter at one side of the wheel, and a plurality of curved tire traction lever members pivoted transversely and circumferentially on said supportin ring.

3. In an anti-skidding device for wheel tires, a bearing member pivotally connected at one side of the wheel, and a tire traction member pivotally carried by said bearing membertransversely to the axis of movement of said bearing member whereby said tire traction member may-be moved longitudinally and transversely with respect to said tire.

4. An antieskidding device for wheel tires, comprising a supporting ring, a plurality of spoke clamps deta'cliably connected to said supporting ring, a plurality of bearing clips secured to said supporting ring and adapted to be folded on one side thereof,xa plurality of tire traction members pivotally mounted in said bearing clips and adapted to extend over the tread portion of the tire, and means for securing said tire traction members in contact with said tire.

In testimony whereof I have ailixed my signature in presence of two witnesses.

HERMAN W. MAURER. Witnesses W. S. SNYDER, O. C. BILLMAN. 

